期刊
FITOTERAPIA
卷 71, 期 -, 页码 S117-S123出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0367-326X(00)00186-6
关键词
apigenin; chrysin; locomotor behavior; anxiolytic effect
The behavioral effects of acute administration of two flavonoids, apigenin and chrysin, contained in Matricaria chamomilla and in Passiflora incarnata, respectively, were studied in rats. The data demonstrate that in our experimental conditions, the two flavonoids were equally able to reduce locomotor activity when injected in rats at a minimal effective dose of 25 mg/kg. However, while chrysin exhibited a clear anxiolytic effect when injected at the dose of 1 mg/kg, apigenin failed to exert this activity. The sedative effect of these flavonoids cannot be ascribed to an interaction with GABA-benzodiazepine receptors, since it was not counteracted by the benzodiazepine antagonist Flumazenil. To the contrary, the anxiolytic effect of chrysin, which was blocked by the injection of Flumazenil, could be linked to an activation of the GABA(A) receptor unit. (C) 2000 Elsevier Science B.V. All rights reserved.
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